ORIGINAL: Doonagoowin
I'm not looking to send it in for 80-100 dollars. For that money, I could just get one of the high end engines. That's why I'm looking to do it myself. I think I'll try that link you sent me JB. I'm looking for better fuel and air intake into the engine because mine doesn't seem that smooth. Thanks guys.
what motor do you want to mod? maybe someone can send you pics. its not hard once you understand the concept and what the goal is. here's another link that can help a bit too, read as much as you can, the read some more, then save up enough money to buy another motor or piston/sleeve (or fix an old one) cause one mistake will ruin the motor. 1mm too much in the wrong direction could spell disaster and the motor not run better, maybe even worse than before.
http://www.e-maxximumrc.com/html/nitro_motor_mod.html